Setting Next Closest Day in jQueru UI Date Picker

Setting Next Closest Day in jQueru UI Date Picker

Can you please take a look at this demo and let me know how I can select /set the next closest  Wednesday  if today is (Sunday, Monday, Tuesday, and Wednesday OR  Saturday  (if today is Thursday or Friday and Saturday)

$( function() { $( "#datepicker" ).datepicker({ beforeShowDay: function(dt){ var day = dt.getDay(); return dt; } }); } );